1.four side 2.working in higely rate 3.got CE,warranty period one year /1220*2440mm.6--25mm Glue roller diameter355,273,259Growded plastic roller diameter219,280glue/growded plastic roller length1100,1400,2700line speed25-90m/minhost installed capacity3KW,5.5KW,7.5KW 4 rollers glue spreader machine